I have a 2004 F-150 with a virbration in the driveline. At 70-72 mph it's doing a pretty good dance. I can put the transmission in neutral and it makes no difference. I have replaced all the tires and wheels and checked the u-joints. At this point I'm at a loss. Any suggestions would be appreciated.


Thanks

Txphantom

 

Check your rear brakes and your driveshaft. Drive for 10 minutes, and then put your hands on the rear hubs. Carefull, it'll be HOT if it's the brakes.

 

check your rims are installed properly. it's 150 ft-lbs even torqued...alot of places just run them on with an impact gun and a overtightened lugnut can cause vibration since it places the rim slightly offset

check your rim runout...a slightly bent rim may exist

check your driveshaft balance...even in neutral, it will still be spinning that same RPM

 

Could the rotors on the rear be out of round (not balanced)? They don't seem to be warped.

Thanks